38 results about "Collagen secretion" patented technology

The invention provides recombinant IV type collagen and application thereof, and relates to the technical field of protein engineering. In the invention, an amino acid residue repetitive unit with good biological activity and stability in the human-derived IV-type collagen is found, and the amino acid residue repetitive unit is used as a core for repeating and constructing the recombinant IV-type collagen, so that the novel human-derived recombinant IV-type collagen with biological activity is obtained. The human-derived recombinant IV-type collagen provided by the invention is a small-molecular-weight protein, is easy to absorb by a human body, is good in safety, can remarkably promote secretion of collagen, also has the effects of promoting cell adhesion and cell migration, and has a good application prospect in the aspects of basement membrane repair and remodeling. A new functional component is provided for products for repairing and tightening the skin, resisting aging, resisting wrinkles, preserving moisture and the like.

The invention belongs to the field of daily chemicals, and discloses a PDRN-containing composition with firming and anti-wrinkle effects, and the composition comprises PDRN, saururus chinensis extract, vetiver root oil, rusty rose seed oil and ginseng seed oil. According to the composition provided by the invention, the PDRN, the saururus chinensis extract, the vetiver root oil, the rusty rose seed oil and the ginseng seed oil are compounded for use, and the components are mutually matched and synergistically promoted to obtain a synergistic effect in the aspect of promoting the secretion of type I collagen, so that the composition has remarkable tightening and anti-wrinkle effects. In addition, the composition provided by the invention also has a certain barrier repairing effect, can significantly reduce the TEWL value of skin, is mild and non-irritant, and is suitable for people with sensitive skin.

The invention discloses a preparation method of a three-dimensional umbilical cord mesenchymal stem cell exosome and application of the three-dimensional umbilical cord mesenchymal stem cell exosome in the fields of medicines and medical beauty. The preparation method comprises the step of amplifying umbilical cord mesenchymal stem cells (UC-MSCs) by adopting a three-dimensional culture system. Experiments show that IGF-1, EGF, VEGF, TGF-beta, PDGF, FGF and the like in the exosome subjected to three-dimensional culture are beneficial to skin repair and oxidation resistance, and the content of cell active factors for promoting collagen secretion is remarkably increased. The umbilical cord mesenchymal stem cell exosome significantly improves the fibroblast proliferation activity, and UV-induced skin fibroblast damage model construction and function verification experiments also prove that the exosome can promote the HA level recovery of damaged skin fibroblasts. The invention provides an efficient and safe biological material for tissue repair.

The invention discloses a recombinant III-type collagen and PDRN compound composition and a preparation method thereof, and relates to the technical field of biological medicines. The composition is formed by compounding recombinant human III type collagen and polydeoxyribonucleotide according to the mass ratio of 1: 10-10: 1, the weight-average molecular weight of the recombinant human III type collagen and the weight-average molecular weight of the polydeoxyribonucleotide are 50-100 kDa, the ratio can generate synergistic interaction, fibroblast proliferation, migration and collagen secretion are remarkably promoted, and the activity of the composition is superior to that of a single component and commercially available products. The composition can be used for preparing medical instruments, cosmetics or water-light injections for skin repair, rejuvenation or skin improvement. The invention also provides a water-light injection containing the compound composition, and the obtained preparation is stable, clear, transparent, safe and non-irritant.

This invention provides an anti-aging and repair dressing containing four complex active factors and its preparation method. The dressing comprises 75-90 parts of a matrix material, 5-15 parts of four complex active factors, and 3-8 parts of a moisturizing auxiliary agent. The four complex active factors are composed of recombinant human type III collagen, acetyl hexapeptide-8, ectoine, and dipotassium glycyrrhizate in a ratio of (3-6):(1-3):(2-4):(1-2). The matrix is ​​a hydrophilic nonwoven fabric or bio-cellulose membrane material that has undergone low-temperature plasma surface grafting activation treatment. The preparation process employs nitrogen combined with vacuum pulse freeze-drying technology, and enhances the activity stability through an ectoine complexation step. This dressing can promote HaCaT cell proliferation, increase collagen secretion, and inhibit inflammatory factors, significantly improving skin barrier function. It has good biocompatibility and can be used to prepare products that improve skin aging and repair.

This invention discloses recombinant type III collagen, its preparation method, and its applications. The amino acid sequence of the recombinant type III collagen is shown in SEQ ID NO: 9. The recombinant type III collagen integrates the RGDV highly active motif and the EKEK hydrophilic stable domain with the core structure of type III collagen to achieve an integrated design of "high activity and long-lasting effect". The in vitro cell migration and collagen secretion effects are improved by more than 50% compared with wild type. Through anti-enzyme cleavage site modification and hydrophilic modification, the in vivo residence half-life is significantly prolonged to meet the long-term repair needs of the dermis.

The present application provides gastrodia elata (Blume) alkaloids PFT201A, PFT201B and PFT203 and a preparation method thereof, and application thereof in the fields of cosmetics and medicine. Gastrodia elata Gastrodia elata (Blume) alkaloids PFT201A, PFT201B and PFT203 significantly promote the secretion of collagen type II in human dermal fibroblasts-adult (HDFa) at an extremely low concentration (0.1 μ M), and have no cytotoxicity at the concentration. These compounds can be used for preparing anti-aging drugs or skin care products.

This invention provides a method for obtaining ingredients from Dulong Paris polyphylla (… Paris dulongensis A method for preparing parisyunnanoside G (PFE55) in H. Li & Kurita and its application in cosmetics and pharmaceuticals. This research belongs to the field of cosmetics and pharmaceutical technology. PFE55 is used at extremely low concentrations (0.1... μ At a concentration of g / mL, it exhibits activity in promoting collagen secretion in adult dermal fibroblasts (HDFa) and is non-cytotoxic at this concentration, making it suitable for the preparation of anti-aging drugs or skincare products.

This invention discloses a therapeutic molecule, nanoparticles, and their preparation method for locating and stabilizing atherosclerotic plaques. The therapeutic molecule is synthesized based on cholanonic acid and copper peptide, and the nanoparticles are formed by the self-assembly of the therapeutic molecule. The preparation method involves aldehyde modification of both ends of cholanonic acid and coupling it with copper peptide via a Schiff base reaction to obtain a therapeutic molecule with both diagnostic and therapeutic functions. The copper peptide structure in the therapeutic molecule serves as the hydrophilic segment, and the cholanonic acid structure serves as the hydrophilic segment, allowing it to further self-assemble into nanoparticles in water. These nanoparticles exhibit acid responsiveness and can disintegrate in the slightly acidic environment of atherosclerotic sites. The released copper peptide can stabilize plaques by promoting collagen secretion and inhibiting matrix metalloproteinase expression. Simultaneously, the X-ray imaging characteristics of cholanonic acid can be used to locate and diagnose the distribution of plaques, thus achieving integrated stabilization and localization of atherosclerotic plaques.

This invention belongs to the field of biomedical technology, specifically relating to the application of mesenchymal stem cells in the preparation of anti-aging drugs. The mesenchymal stem cells are human adipose-derived mesenchymal stem cells (hAMSCs) or mouse bone marrow mesenchymal stem cells (BM-MSCs). This invention utilizes mesenchymal stem cells to regulate senescent stromal cells and the spleen's ECM, improving the thinning stromal state in the tissue microenvironment through multiple targets. Specifically, it improves the aging-related secretory phenotype of stromal cells, enhances mitochondrial activity, strengthens their proliferation capacity, and delays the reduction of collagen secretion. This, in turn, delays the disordered distribution and functional decline of immune cells caused by aging and enhances tissue regeneration capacity, indirectly affecting various other cells in the tissue microenvironment, thus exhibiting an antagonistic effect against systemic organ aging.

The traditional Chinese medicine mouthwash comprises a traditional Chinese medicine compound and a mouthwash matrix, and the traditional Chinese medicine compound comprises the following components in parts by weight: 10-20 parts of golden cypress, 15-30 parts of angelica sinensis, 15-30 parts of honeysuckle, 15-30 parts of chrysanthemum and 15-30 parts of liquorice. The invention also provides a preparation method of the traditional Chinese medicine mouthwash for relieving gingivitis. The traditional Chinese medicine mouthwash for relieving gingivitis can promote proliferation of gingival fibroblasts, promote secretion of gingival fibroblast collagen and effectively inhibit proliferation of oral anaerobic bacteria, thereby relieving gingivitis.

The application relates to a recombinant type I collagen and application thereof, which utilizes the characteristics of Pichia pastoris capable of secreting and expressing recombinant proteins, secretes the recombinant type I collagen on the culture medium supernatant, and reduces the difficulty of protein purification. In addition, the integrin site RGD is inserted into the collagen to form a recombinant type I collagen with high stability and high expression. According to the relative proliferation of cells and the relative adhesion experiment of cells, it can be seen that the recombinant type I collagen has the effects of promoting the proliferation of skin fibroblasts, improving the skin, promoting wound healing, promoting the adhesion of fibroblasts in the skin layer and the like. Therefore, the recombinant type I collagen has great potential applications in the fields of skin care and beauty, medical treatment and the like.

The invention discloses application of recombinant human glaze matrix protein in skin repair dressing, and belongs to the technical field of biomedicine. The skin repair dressing comprises recombinant human glaze matrix protein, sodium hyaluronate, chondroitin sulfate, osa starch and propylgallate wrapped by lipidosome, and the repair effect is improved through a multiple synergistic mechanism. The preparation method of the dressing comprises the following steps: mixing the recombinant human glaze matrix protein with the stabilizer, and then carrying out homogeneous binding with the sodium hyaluronate, the osa starch, the liposome propyl gallate and the hydrogel matrix. Experiments prove that after the dressing is used, the wound healing speed is increased, the III type collagen secretion amount is increased, the TGF-beta1 expression is reduced, the scar index is reduced, and the dressing is suitable for burn and surgical incision repair.

The application discloses an extracellular matrix fusion protein and a preparation method and application thereof, relates to the technical field of recombinant proteins, and aims to solve the technical problem that the existing protein cosmetic products on the market have relatively single functions and are difficult to meet application requirements. The extracellular matrix fusion protein has a nucleotide sequence as shown in SEQ ID No. 7. The extracellular matrix fusion protein with the nucleotide sequence as shown in SEQ ID No. 7 can significantly promote cell adhesion and proliferation, promote cell migration, and act on the dermis layer through the skin, and significantly promote collagen secretion, and since the recombinant protein belongs to a biological protein, has the advantages of easy decomposition and no residue, and has a more broad application prospect compared with ordinary chemical cosmetic products and hormone drugs.

The invention relates to the technical field of protein engineering or genetic engineering, and particularly discloses a method for improving the secretory expression efficiency of recombinant III-type collagen (Col3) in pichia pastoris in a fermentation tank. The invention discloses pichia pastoris subjected to fermentation culture. The pichia pastoris simultaneously expresses a type III collagen gene, a secretion signal peptide gene and a gene expression regulation element. The pichia pastoris is subjected to four-stage fermentation culture (not traditional three-stage fermentation culture), high expression of recombinant III type collagen in a fermentation tank can be achieved, and the yield is at least 10 g / L or above. The technical scheme provided by the invention has the effect of greatly improving the fermentation yield of the recombinant III type collagen.

The invention provides a polymer microsphere as well as a preparation method and application thereof. The polymer microspheres contain a first polyester material and a second polyester material, the first polyester material is polyester modified by a hydrophilic substance, and the second polyester material is polyester not modified by the hydrophilic substance; the polymer microsphere has a through pore channel structure, the through pore channel structure forms pores in the surface of the polymer microsphere, and the interior of the polymer microsphere is of a porous honeycomb structure. When the polymer microsphere provided by the invention is used as an organism filling agent, the polymer microsphere has a good adhesion effect on cells, better cell adhesion can be realized, and collagen secretion is improved; meanwhile, the through pore channel structure enables body tissues to grow more uniformly in the microspheres and strengthens the combination of the tissues and the polymer microspheres, so that the polymer microspheres are not easy to displace after being injected and in the later degradation process, and the safety is improved.

The present patent application discloses a kind of recombinant collagen VII and its preparation method and use.The recombinant collagen VII is obtained by multiple repetitions of short amino acid sequence GLPGAKGEKGAP.The secretory yield of the recombinant collagen VII in commercialized pichia expression system can be as high as about 17.3g / L, the extracellular secreted protein is basically not degraded during fermentation process, and more than 90% purity can be achieved by simple ultrafiltration and decolorization, industrial production can be realized;Moreover, the recombinant collagen VII has more optimal biological activities of promoting autophagy, improving endoplasmic reticulum stress state, promoting collagen secretion and inhibiting matrix metalloproteinase degradation of collagen, and shows good firming and anti-wrinkle effects.

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The invention discloses a traditional Chinese medicine mouthwash composition for strengthening teeth and refreshing oral cavity, the traditional Chinese medicine mouthwash composition comprises traditional Chinese medicine active components and a mouthwash matrix, and the traditional Chinese medicine active components comprise, by weight, 500-900 parts of ginseng, 10-20 parts of prunella vulgaris, 10-20 parts of coptis chinensis and 10-30 parts of turmeric. The invention also discloses a preparation method of the traditional Chinese medicine mouthwash composition. According to the traditional Chinese medicine mouthwash composition disclosed by the invention, the inhibition rate of anaerobic bacteria in the oral cavity can reach 42.1%-55.3%, the proliferation rate of gingival fibroblasts can reach up to 140.5%, the secretion amount of type I collagen of the gingival fibroblasts is increased to 24.4 ng / mL, and the effects of strengthening teeth and refreshing the oral cavity are remarkably realized.

The invention discloses porous polycaprolactone microspheres for tissue filling and a preparation method of the porous polycaprolactone microspheres, and relates to the field of biomedical materials. The microsphere is composed of polycaprolactone, the diameter of the microsphere is 40-70 [mu] m, the dispersion coefficient of the microsphere is less than 5%, the porosity of the microsphere is 55-85%, and the surface of the microsphere is provided with a uniform open pore structure formed by tridecane. According to the preparation method, a microfluidic technology is adopted, a tridecane-containing polycaprolactone dichloromethane solution is taken as a dispersion phase, a polyvinyl alcohol aqueous solution is taken as a continuous phase, an oil-in-water emulsion is formed through microchannel shearing, and curing, washing and freeze-drying are performed to obtain the tridecane-containing polycaprolactone / polyvinyl alcohol composite material. The microspheres disclosed by the invention have excellent monodispersity and a porous structure, and can remarkably promote fibroblast proliferation and collagen secretion and induce moderate inflammatory response to activate tissue regeneration. The process is simple and controllable, and the obtained microspheres have injectability and a tissue repair promoting function and have application prospects in the field of soft tissue repair.

The application provides a recombinant collagen IV and application thereof, and relates to the technical field of protein engineering.Amino acid residue repeating unit with good biological activity and stability in human collagen IV is found in the application, and the repeating unit is repeated and used as a core to construct a recombinant collagen IV, and then a new human recombinant collagen IV with biological activity is obtained.The human recombinant collagen IV provided in the application is a small molecular weight protein, is easy to be absorbed by a human body, has good safety, can significantly promote secretion of self collagen, has the effects of promoting cell adhesion and promoting cell migration, and has a good application prospect in basement membrane repair and remodeling.The application provides a new functional ingredient for products for repairing skin, tightening skin, resisting aging, resisting wrinkles, moisturizing and the like.

The application provides a kind of recombinant human collagen XVII and its preparation method and application, it is related to genetic engineering technical field.The preparation method of recombinant human collagen XVII includes the following steps: selecting the amino acid sequence Xvii-rich of GPP of human collagen XVII triple helix region 1127 to 1149 position, then codon optimization of yeast expression system is carried out, and the recombinant human collagen XVII is prepared according to the sequence of target gene.The molecular weight of recombinant collagen XVII is reduced compared with human collagen XVII, is not easy to degrade, and is 100% homologous with the amino acid sequence of natural collagen XVII, has no immunogenicity;By electrophoresis detection, the proportion of the complete target protein of recombinant human collagen XVII secreted to the outside of host cell is more than 90%, has the advantages of high stability and not easy to degrade.

According to the recombinant I-type collagen and the application thereof, the recombinant I-type collagen is secreted in a culture medium supernatant by utilizing the characteristic that pichia pastoris can secrete and express recombinant protein, so that the difficulty of protein purification is reduced. In addition, the integrin site RGD is inserted into the collagen to form the recombinant I-type collagen with high stability and high expression. Comprehensive cell relative proliferation and cell relative adhesion experiments show that the recombinant I-type collagen not only has the ability of promoting skin fibroblast proliferation, but also has the effects of improving skin, promoting wound healing, promoting skin layer fibroblast adhesion and the like. Therefore, the recombinant I-type collagen has huge potential application in the fields of skin care, beauty treatment, medical treatment and the like.

The invention discloses a cartilage repair hydrogel material and a preparation method thereof, and relates to the technical field of biomedical materials. The invention proposes that a cartilage repair hydrogel material is obtained by adding a water-soluble derivative of vitamin E, D-α-tocopheryl polyethylene glycol 1000 succinate, 2,4-toluene diisocyanate-modified T-ZIF-8, and SIKVAV peptide-modified Mg-MOF to a mixed solution obtained by compounding silk fibroin peptide, oxidized chondroitin sulfate, and 3-aminophenylboronic acid, and cross-linking the mixture under ultraviolet light. The hydrogel material prepared by the invention has a three-dimensional complex cross-linked structure and strong mechanical properties and stability. The components act synergistically to create adhesion groups and hydrophilic groups on the surface of the hydrogel material, thereby increasing the binding opportunity between bone cells and the surface of the hydrogel material, promoting the adhesion and proliferation of bone cells, reducing the rejection reaction of tissues to metal materials, lowering the inflammatory reaction, and promoting collagen secretion and cartilage regeneration.

The present invention relates to the field of plant extraction technology and specifically provides the use of a Xianglian protein peptide. The present invention provides the use of a Xianglian protein peptide in preparing a product that promotes collagen secretion in cells. Compared with the prior art, the Xianglian protein peptide provided by the present invention can significantly promote collagen secretion in cells.

This invention provides steroidal saponins such as Paris polyphylla saponin A, Paris polyphylla saponin B, Xuefengshan saponin A, Xuefengshan saponin B, and Xuefengshan saponin C, their preparation methods, and their applications in the cosmetics and pharmaceutical fields. It belongs to the field of cosmetics and pharmaceutical technology. Paris polyphylla saponin VII, protodiospin, protodiospin, protodiospin, Xuefengshan saponin B, Xuefengshan saponin C, and methyl protosaponin Pb are prepared at extremely low concentrations (0.1%). m At concentrations of M, it exhibits activity in promoting collagen secretion in adult dermal fibroblasts (HDFa), with an increase in collagen secretion exceeding 50%; furthermore, at this concentration, it is not cytotoxic and can be used to prepare anti-aging drugs or skincare products.

The invention discloses a composition for promoting skin repair as well as a preparation method and application thereof, and belongs to the technical field of skin repair. The composition for promoting skin repair comprises 40-90 parts of a lucid ganoderma component, 10-60 parts of a dendrobium officinale flower component and 1-3 parts of external vesicles. The composition provided by the invention can effectively promote proliferation of keratinocytes, enhance the moisturizing effect of the keratinocytes and promote proliferation, migration and collagen secretion of fibroblasts, is beneficial to skin injury repair, and has a good commercial application prospect.

The invention discloses a light-operated cross-linked intelligent gel dressing of ginseng exosome composite self-assembled micelle and application of the light-operated cross-linked intelligent gel dressing, and belongs to the technical field of biology. The intelligent ginseng exosome with cell penetrating peptide modification and endosome escape functions is constructed through an ultrasonic incubation method, and meanwhile, the light-controlled cross-linked intelligent gel dressing capable of forming gel in situ is developed by adopting a light cross-linking technology. According to the dressing, the angiogenesis promoting function of the intelligent ginseng exosome and the collagen secretion promoting characteristic of the asiaticoside-loaded micelle are creatively integrated, efficient cell uptake is achieved through a gridding protein mediated endocytosis pathway, and endosome escape is completed by utilizing an environmental response mechanism. The co-loading system constructed by the invention has dual functions of wound protection and tissue regeneration, and a novel external preparation solution with high efficiency and safety is provided for local treatment of diabetic foot ulcer.

This invention discloses a method for analyzing the anti-aging and skin whitening mechanisms of bergamot extract based on network pharmacology and experimental verification. Belonging to the field of computer-aided drug screening technology, this method uses network pharmacology to predict the core targets of the active ingredients in bergamot and screens the signaling pathways regulated by the bergamot extract. Through DPPH free radical scavenging experiments, mushroom tyrosinase inhibition experiments, B16F10 cell melanin production inhibition experiments, HSF cell type I collagen secretion promotion experiments, and a UVB-induced mouse skin pigmentation model, the method systematically verifies that bergamot extract has multiple effects, including significantly inhibiting melanin synthesis, scavenging free radicals, promoting collagen secretion, and improving skin pigmentation. This invention is the first to combine computational prediction with experimental verification, fully elucidating the whitening and anti-aging potential of bergamot extract and its underlying molecular mechanisms, providing a reliable method and basis for developing novel natural cosmetic raw materials.

The invention provides anti-wrinkle and anti-aging essence containing a rhodiola rosea extract and a preparation method of the anti-wrinkle and anti-aging essence, and relates to the technical field of daily necessities. The skin care product comprises the following components in percentage by mass: 2%-5% of a rhodiola rosea extract, 0.5%-1% of a porphyra yezoensis extract, 1%-2% of a transdermal enhancer, 3%-5% of glycerol, 3%-5% of butanediol, 0.5%-1% of hydroxyethyl cellulose, 0.2%-0.8% of glyceryl stearate, 0.1%-0.5% of phenoxyethanol and the balance of water. The rhodiola rosea extract and the porphyra yezoensis extract are specifically combined for the first time and have a synergistic effect, collagen secretion can be promoted, fine wrinkles can be improved, and good anti-wrinkle and anti-aging effects are achieved.